A relationship of


Serving the Healthcare Industry

By creating a solid partnership with our customers, we enable your facility to perform beyond expectations. In fact, the earlier we are involved in your project, the more effectively we can bring to bear our diverse mix of services and solutions. Through every phase of the project, you'll have the assurance of knowing that we assume complete accountability. And that our pledge of customer satisfaction extends from the planning and design stage all the way through installation and maintenance. 



Serving the Entertainment Industry

We have consciously shaped our services to reflect your building's lifecycle - from initial design and construction through day-to-day operation and maintenance to future upgrade and renovation. That's a good reason to make Clark your single source. But there are ·other reasons, too. By working with one expert, quality control, as well as budgetary control, becomes consolidated. Finally, we are not only able to meet exceptionally fast design and construction schedules, we also employ some of the most innovative solutions found in our industry today. 



Serving Religious & Lifecare Industries

Our expertise in electrical, heating, ventilating and air-conditioning (HVAC), is a strength which is decidedly to your advantage. But you'll find our diversity even more of a benefit. Our knowledgeable technicians are capable of providing primary and secondary power distribution to interior lighting and control systems. Plus, we're experienced in geothermal, air­to-air and water-source heat pumps, hot/chilled water and steam systems. 



Serving Commercial, Educational, Recreation Industries

Our goal is to help you make the most of your investment in a facility which is why we always keep the big picture in mind.  We know that today's decisions will affect your building's performance in years to come.  We design, install, and service systems that will stand up to future challenges.  Our infrastructure recommendations are intended for the long term.  Just like your customer relationships.



Serving Commercial and Retail Industries

As design/build contractors, we can design all your electrical and space-conditioning, fire alarm, communications and control systems. Our design services include budgeting, estimation, scheduling, drawing preparation and value engineering. We assist in finding the best, most economical materials, as well as the optimum construction methods - even for unique applications. Our designers utilize the latest in engineering and CAD technology. Our aim is to reduce the complexity of the design and, therefore, the time required for coordination and installation. 


One of eastern Pennsylvania's premiere contracting and facility service companies.  Clark, Inc. offers design, construction and maintenance of mechanical and electrical systems for a wide array of commercial, industrial and institutional applications.  For three generations, our dedication to high quality work and even higher customer satisfaction has remained one of our most important assets.  It's this commitment that has set our company apart since its founding in 1931.

At Clark, we do more than provide you with a single source for electrical, heating, cooling and control systems.  We also offer a commitment to quality so superior that it has been recognized nationally with awards from the Associated Builders and Contractors (ACB). the Air Conditioning Contractors of America (ACCA), and Contracting Business.  Choose Clark, Inc. for systems that work and a relationship you can count on.

To find out more about us, call (717) 687-7676.

Associated Builders and Contractors Member      Lancaster Chamber of Commerce and Industry Member